MWCNT-Modified Gold Electrode Sensor for the Determination of Propyl Gallate in Vegetable Oils

Study of kinetic parameters and development of a voltammetric sensor for the determination of butylated hydroxyanisole (BHA) in oil samples

“…L-Cysteine (2-amino-3-mercaptopropanoic acid, L-cys), one of the sulfur amino acids, is non-essential amino acid present in the human body. The objective of the present work is to establish a convenient and sensitive electrochemical sensor for the determination of BHA in food samples, based on electro catalytic activity of electropolymerised film of LCysteine on a glassy carbon electrode Following our research of developing new electrochemical procedures for food analysis, (Thomas et al 2012;Vikraman et al 2013;Chandran et al 2014), herein we report the development of a poly (L -Cysteine) modified glassy carbon electrode sensor for the determination of BHA. The resulting sensor showed excellent reproducibility and stability when the experimental conditions for the fabrication and the analytical performance of modified electrode were optimized.…”

Carbon-nanotube-modified screen-printed electrodes, a cationic surfactant, and a peak deconvolution procedure: alternatives to provide satisfactory simultaneous determination of three synthetic antioxidants in complex samples

“…Several methods for antioxidant detection in samples of cosmetic oils and biodiesel rely on techniques such as high-performance liquid chromatography (HPLC) coupled with a diode array detector, 6 micellar electrokinetic capillary chromatography with electrochemical detection 4 and voltammetric measurements. [1][2][3]7,8,[16][17][18][19][20] We have recently reported an electroanalytical method for the simultaneous determination of TBHQ and BHA in biodiesel samples using linear sweep voltammetry and a cationic surfactant, in addition to multi-walled carbon nanotube SPEs. 18 Because other antioxidants, such as PG, are being used in the cosmetic and biodiesel industries, new methods for selective simultaneous determination of the antioxidant concentrations in commercial samples are currently required.…”

Manganese porphyrin sensor for the determination of bromate

“…As a continuation to our work on food analysis (Thomas et al 2012;Vikraman et al 2013) the present work is aimed to investigate the electrochemical behavior of the food additive, bromate at a Mn(III) porphyrin modified GE based on its reduction. The developed method has been applied for the determination of bromate in different bread samples, in which this additive may be present.…”